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Treatment process of triflumizole pesticide production wastewater

A technology for treating process and producing wastewater, which is applied in water/sewage treatment, natural water treatment, flotation water/sewage treatment, etc. It can solve the problems of complex discharge wastewater treatment process, incomplete recovery of active ingredients, and imperfect treatment process, etc. , to achieve good flocculation effect, reduce cost input and short process cycle

Inactive Publication Date: 2019-07-26
JIANGSU HEBEN BIOCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the prior art, the present invention provides a treatment process for flucloxanil pesticide production wastewater, which solves the problem that the current treatment process of fluconazole pesticide production wastewater is not perfect, the recovery of active ingredients is incomplete, and the treatment process of discharged wastewater is complex and can high consumption problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of treatment process of fluconazole pesticide production wastewater

[0031] Include the following steps:

[0032] Step 1. Raise the temperature of fluconazole pesticide production wastewater to 125°C at a rate of 5°C / min, keep it warm for 2 hours, then raise the temperature to 245°C at a rate of 10°C / min, oxidize it for 2 hours, and use a concentration of 0.2mol / L The sodium hydroxide solution absorbs nitrogen and carbon dioxide decomposed by waste water to obtain pretreated waste water;

[0033] Step 2: React the pretreated wastewater obtained in Step 1 in an iron-carbon reactor for 40 minutes, add flocculant to the discharged wastewater after the reaction, settle for 30 minutes, and filter the upper layer of wastewater;

[0034] Above, in the iron-carbon reactor: the iron content is 79%, the carbon content is 18%, and the palladium catalyst is 3%; the ratio of the flocculant to the pretreated wastewater is 10kg: 50L; the flocculant is composed of polyaluminum...

Embodiment 2

[0040] A kind of treatment process of fluconazole pesticide production wastewater

[0041] Include the following steps:

[0042] Step 1. Raise the temperature of fluconazole pesticide production wastewater to 135°C at a rate of 10°C / min, keep it warm for 3 hours, then raise the temperature to 285°C at a rate of 20°C / min, oxidize it for 4 hours, and use a concentration of 0.5mol / L The sodium hydroxide solution absorbs nitrogen and carbon dioxide decomposed by waste water to obtain pretreated waste water;

[0043] In step 2, the pretreated wastewater obtained in step 1 is reacted in an iron-carbon reactor for 55 minutes, and a flocculant is added to the discharged wastewater after the reaction, and after settling for 60 minutes, the upper layer of wastewater is filtered;

[0044]Above, in the iron-carbon reactor: the iron content is 83%, the carbon content is 14%, and the palladium catalyst is 3%; the ratio of the flocculant to the pretreated wastewater is 10kg: 60L; the floccu...

Embodiment 3

[0050] A kind of treatment process of fluconazole pesticide production wastewater

[0051] Include the following steps:

[0052] Step 1. Raise the temperature of fluconazole pesticide production wastewater to 127°C at a rate of 6°C / min, keep it warm for 3 hours, then raise the temperature to 255°C at a rate of 12°C / min, oxidize it for 4 hours, and use a concentration of 0.3mol / L The sodium hydroxide solution absorbs nitrogen and carbon dioxide decomposed by waste water to obtain pretreated waste water;

[0053] In step 2, the pretreated wastewater obtained in step 1 is reacted in an iron-carbon reactor for 45 minutes, and after the reaction, a flocculant is added to the discharged wastewater, and after settling for 40 minutes, the upper layer of wastewater is filtered;

[0054] Above, in the iron-carbon reactor: the iron content is 80%, the carbon content is 15%, and the palladium catalyst is 5%; the ratio of the flocculant to the pretreated wastewater is 10kg: 60L; the flocc...

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Abstract

The invention discloses a treatment process of triflumizole pesticide production wastewater. Discharged wastewater obtained by the treatment process including pretreatment, impurity removal through aniron carbon reactor, flocculation and settling, treatment through an anaerobic digester, ammonia removal through a contact aerobic tank, flocculation and settling and ultrafiltration conforms to discharging regulations and is extremely low in COD numerical value and little in organic matter content, and the objectives of environment protection and green production can be realized.

Description

technical field [0001] The invention relates to the technical field of pesticide production wastewater treatment, in particular to a treatment process for fluconazole pesticide production wastewater. Background technique [0002] With the advancement of agricultural production, in order to promote the smooth growth of crops and increase the yield, it is often necessary to spray corresponding pesticides at various stages of crop growth to prevent and control crop diseases and insect pests that may appear or have already occurred. At present, the use of triazole pesticides in fungicidal crops is relatively common, especially the types of pesticides such as fluconazole and penconazole. The production and preparation of a large amount of fluconazole pesticides, due to a large number of organic synthesis processes in the production and preparation process, It is easy to produce pesticide production wastewater with complex components and high salt content, which is directly discha...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/34C02F101/38C02F101/36C02F101/16
CPCC02F1/24C02F1/444C02F1/5236C02F1/72C02F3/30C02F9/00C02F2101/16C02F2101/36C02F2101/38C02F2103/343
Inventor 陈华曾挺潘光飞
Owner JIANGSU HEBEN BIOCHEM
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